Continuity mistake: ADA Price and the defendant's attorney are arguing a motion in the judge's chambers. Price and the other attorney played by Kevin Dunn begin to exit the chambers together but the next scene shows Price coming through the door alone with no sight whatsoever of the Dunn character.
Continuity mistake: When the two detectives exit the brownstone belonging to Miller their prime suspect, Miller walks up the sidewalk and starts to run when he sees the police. The detectives and one police officer take off down the stairs twice as they give chase.
Suggested correction: I'm not sure where you're getting your information, but medical doctors are involved in lethal injections more than just certifying death. This is why so many groups were actively trying to stop the practice of medical profession involvement. In 2007, 17 states required physician involvement, which included doctors at times having to administer the injection.
Bishop73
The botched execution took place in South Carolina, which absolutely forbids medical practitioners to take an active role in killing a condemned prisoner. In fact, they are considering switching executing prisoners by firing squad instead of lethal injection, at least partly to distance medical professionals from the actual procedure leading to a person's death.